*: don't let generated comment become package comment

cmd/genconfig/main.go

@@ -18,6 +18,7 @@ const tmpl = `// DO NOT EDIT: This file was auto-generated by "go generate"
 // To regenerate run:
 //   go install github.com/coreos/dex/cmd/genconfig
 //   go generate <<fully qualified package name>>
+
 package __PKG__
 
 import (

connector/config.go

@@ -2,6 +2,7 @@
 // To regenerate run:
 //   go install github.com/coreos/dex/cmd/genconfig
 //   go generate <<fully qualified package name>>
+
 package connector
 
 import (

email/config.go

@@ -2,6 +2,7 @@
 // To regenerate run:
 //   go install github.com/coreos/dex/cmd/genconfig
 //   go generate <<fully qualified package name>>
+
 package email
 
 import (